KR100407248B1 - A method for manufacturing a security paper containing multi-tonal watermark in fourdrinier machine - Google Patents
A method for manufacturing a security paper containing multi-tonal watermark in fourdrinier machine Download PDFInfo
- Publication number
- KR100407248B1 KR100407248B1 KR10-2000-0084957A KR20000084957A KR100407248B1 KR 100407248 B1 KR100407248 B1 KR 100407248B1 KR 20000084957 A KR20000084957 A KR 20000084957A KR 100407248 B1 KR100407248 B1 KR 100407248B1
- Authority
- KR
- South Korea
- Prior art keywords
- paper
- silver
- long
- manufacturing
- paper machine
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/44—Watermarking devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D15/00—Printed matter of special format or style not otherwise provided for
- B42D15/0053—Forms specially designed for commercial use, e.g. bills, receipts, offer or order sheets, coupons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/29—Securities; Bank notes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/333—Watermarks
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/02—Head boxes of Fourdrinier machines
- D21F1/022—Means for injecting material into flow within the headbox
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F9/00—Complete machines for making continuous webs of paper
- D21F9/02—Complete machines for making continuous webs of paper of the Fourdrinier type
Abstract
본 발명은 장망초지기를 이용한 은화삽입지의 제조방법 및 이를 수행하기 위한 초지기에 관한 것으로, 좀 더 상세하게는 헤드박스(9)로부터 공급된 지료를 지료유도장치(11)를 통해 일시정지시킨 후 이동형 슬라이스(8)를 움직여 일정량의 높이로 유지시키면서 유출시키면, 지료가 장망(6') 상의 은화 압사요철부(7)에 먼저 안착된 후 흡입관(10)을 통과하면서 강제탈수되고 주변 지료가 재충전되면서 은화부분의 지료밀도차를 크게 하는 장망초지기를 이용한 은화삽입지의 제조방법 및 이를 수행하기 위한 장망초지기에 관한 것이다. 본 발명에 따른 방법에 의해 장망 초지기를 이용하여 제조할 수 없었던 은화를 고가의 환망방식을 이용하지 않고도 얻을 수 있다.The present invention relates to a manufacturing method of a silver insertion sheet using a long paper paper machine and a paper machine for performing the same, and more particularly, after the paper material supplied from the head box 9 is paused through the paper guide device (11). When the movable slice 8 is moved while maintaining it to a certain amount of height, the paper material is first seated on the silver-coated concave-convex portion 7 on the long wire 6 ', and then forcedly dehydrated while passing through the suction pipe 10 and the surrounding paper is recharged. The present invention relates to a method of manufacturing a silver insertion site using a long mandrel paper machine which increases the paper density difference between silver parts and a long mandrel paper machine for performing the same. By the method according to the present invention, silver coins which could not be manufactured using a long paper machine can be obtained without using an expensive ring network method.
Description
본 발명은 장망초지기를 이용한 은화삽입지의 제조방법 및 이를 수행하기 위한 초지기에 관한 것으로, 좀 더 상세하게는 종래의 장망초지기를 변형하여 은화를 삽입한 보안용지를 제조할 수 있는 제조방법 및 이를 수행하기 위한 장망초지기에 관한 것이다.The present invention relates to a manufacturing method of a silver insertion paper using a long mesh paper machine and a paper machine for performing the same, and more particularly, a manufacturing method capable of manufacturing a security paper into which silver is inserted by modifying a conventional long mesh paper machine. It is about a long term paper machine for doing this.
초지공정에서 종이에 형성시키는 위조방지 기법인 은화(water mark) 중 인물은화와 같은 멀티톤 은화(multitonal water mark)는 현재까지 환망을 이용한 방식으로 제조될 수 밖에 없었다.Among the watermarks, which are anti-counterfeiting techniques formed on paper in the papermaking process, multitonal water marks such as silver coins have been produced by a ring network.
도 1에는 통상적인 장망초지기의 장망(wire) 구동 형태가 개략적으로 도시되어 있는데, 도 1과 같이 장망초지기의 장망(6)은 브리스트롤(bleast roll)(1), 테이블롤(table roll)(2), 흡입롤(suction roll)(3), 인장롤(tension roll)(4)의 상면과 하면을 모두 통과하고 흡입판(5)의 상면을 통과하도록 설치되기 때문에 기계 운전 중 장망의 장력으로 은화 형태가 압사된 장망(6) 부분의 요철 형태를 유지하기 어려워 은화제조에 어려움이 있었다.FIG. 1 schematically shows a wire driving form of a conventional long paper machine. As shown in FIG. 1, the long paper 6 of the long paper machine has a bristol roll 1 and a table roll. (2), suction rolls (3), tension rolls (4) to pass through both the upper and lower surfaces of the suction plate (5) is installed so as to pass through the It was difficult to maintain the uneven shape of the long mesh (6) portion in which the silver form was inclined due to tension, which made it difficult to prepare the silver.
종래의 장망초지시 종이제품에 은화를 삽입할 수 있는 방법으로는, 한국특허공고 제93-5536호에 장망 끝부분에서 댄디롤을 이용하는 방법이 기재되어 있다. 상기 댄디롤은 직경 50∼60cm의 와이어로 구성된 프레임(wire frame)롤의 바깥 원주부분에 은화 문양이 압사(press)된 금망을 씌운 롤로써, 초지시 매우 습한 지료가 장망부의 제1 및 제2흡입판을 통과한 직후 일부 탈수된 지료상태에서 댄디롤을 지료층의 일정 두께만큼 누르면서 장망 흐름 속도와 동일한 속도로 댄디롤을 회전시키면 습한 지료층에 댄디롤의 망에 압사된 문양 형태로 지료의 형성을 변경시키므로서 일정 문양을 삽입한 종이 제품을 제조하는 방법이다.As a method of inserting silver coins into a conventional paper sheet of a long mangyeongcho, Korean Patent Publication No. 93-5536 describes a method of using the dandy roll at the end of the long mesh. The dandy roll is a roll covered with a gold mesh in which a silver pattern is pressed on the outer circumference of a wire frame roll composed of a wire having a diameter of 50 to 60 cm. 2 Immediately after passing through the suction plate, while rotating the dandy roll at the same speed as the long-term flow rate while pressing the dandy roll to a certain thickness of the paper layer in the partially dehydrated paper state, the paper material in the shape of sand dipped into the dandy roll net in the wet paper layer. It is a method of manufacturing a paper product with a certain pattern inserted while changing the formation of.
전술한 댄디롤에 의한 댄디마크의 은화는 장망을 이용한 선형 문자 은화나 일반적인 단순 문양은화를 삽입한 종이제품 생산용으로 사용되어 왔고, 은행권 등 유가증권용으로 사용되어지고 있는 고품위 멀티톤 은화(multitonal water mark) 삽입은 환망(cylinder mould)에 의한 초지작업으로 행하여지고 있다.The above-mentioned Dandy Mark's silver coin by Dandy Roll has been used for the production of paper products incorporating long letter linear coins or general simple pattern silver coins, and is used for securities such as banknotes. Insertion of water mark is performed by the papermaking process by a cylinder mold.
따라서, 본 발명의 목적은 환망에서만 제조가 가능했던 멀티톤 효과를 갖는 은화 삽입지를 장망에서 가능토록 하는 제조하는 방법을 제공하고, 또한 이를 수행하기 위한 초지기를 제공하는데 있다.Accordingly, it is an object of the present invention to provide a manufacturing method for producing silver inserts having a multitone effect which has been available only in a ring network in the long term, and to provide a paper machine for performing the same.
상기 목적을 달성하기 위한 본 발명의 장망초지기를 이용한 은화삽입지의 제조방법은, 헤드박스(9)로부터 공급된 지료를 지료유도장치(11)를 통해 일시정지시킨 후 이동형 슬라이스(8)를 움직여 일정량의 높이로 유지시키면서 유출시키는 단계; 및 상기 지료유도장치(11) 하부에서 지료가 장망(6') 상의 은화 압사요철부(7)에 안착되도록 한 다음, 흡입관(10)을 통과시키면서 강제탈수시켜 상기 은화 압사요철부(7)상에 주변 지료를 재충전시킴으로써 은화부분의 지료밀도차를 크게 하는 단계;로 이루어진다.In order to achieve the above object, the manufacturing method of the silver insertion paper using the long paper machine according to the present invention is to stop the paper material supplied from the head box 9 through the paper guide device 11 and then move the movable slice 8. Distilling while maintaining a certain amount of height; And the paper in the lower portion of the paper guide device 11 is seated on the silver sandblasting concave-convex portion 7 on the long screen (6 '), and then forcibly dehydrated while passing through the suction pipe (10) on the silver sand-glass roughening portion (7) Recharging the surrounding paper to increase the paper density difference of the silver portion.
또 다른 본 발명의 목적을 달성하기 위한 초지기는, 장망초지기를 이용하여 은화삽입지를 제조하기 위해 헤드박스(9)로부터 공급된 지료를 일시정지시킨 후 일정량의 높이를 유지하면서 지료를 유출시킬 수 있는 이동슬라이스(8)를 포함하는 지료유도장치(11); 지료가 안착되어 은화형상을 갖도록 하는 장망상에 형성된 은화 압사요철부(7); 상기 은화 압사요철부(7)가 장망의 장력에 의해 변형되지 않고 회전할 수 있도록 압사요철부(7)와의 동일 위치에 요부가 형성된 롤부(1', 2', 3', 4') 및 흡입판(5'); 및 은화부분의 지료밀도차를 크게 하기 위한 흡입관(10);을 포함한다.Another paper machine for achieving the object of the present invention, by using the long-term paper machine to stop the paper material supplied from the head box 9 to manufacture the silver insertion paper can be discharged paper while maintaining a certain amount of height A paper guide device 11 including a movable slice 8; Silver indented concave-convex portion (7) formed on a long mesh so that the paper is seated to have a silver shape; Roll portions 1 ', 2', 3 ', 4' formed with recesses at the same position as the sandblasted and recessed portions 7 so that the silver sandblasted and recessed portions 7 can be rotated without being deformed by the tension of the mesh. Plate 5 '; And a suction pipe (10) for increasing the stock density difference of the silver portion.
도 1은 통상적인 장망초지기의 장망(wire) 구동 형태를 개략적으로 도시한 개략도이고,1 is a schematic diagram showing a long wire driving form of a conventional long-term paper machine,
도 2는 본 발명에 따른 구조가 변경된 롤(1', 2', 3', 4')의 단면도이며,2 is a cross-sectional view of rolls 1 ', 2', 3 ', 4' with a modified structure according to the present invention,
도 3은 본 발명에 따른 구조가 변경된 흡입판(5')의 평면도와 단면도이고,3 is a plan view and a cross-sectional view of a suction plate 5 ′ having a modified structure according to the present invention;
도 4는 본 발명에 따른 장망(6') 상의 은화 압사요철부(7)를 도시한 개략도이며,4 is a schematic diagram showing a silver indented portion 7 on the long wire 6 'according to the present invention,
도 5는 본 발명에 따른 지료유도장치(11)이고,5 is a paper induction apparatus 11 according to the present invention,
도 6은 본 발명에 따른 방법을 개략적으로 도시한 개략도이다.6 is a schematic diagram schematically showing a method according to the invention.
* 도면부호의 간단한 설명 *BRIEF DESCRIPTION OF THE DRAWINGS
1: 브리스트롤(bleast roll), 2, 2': 테이블롤(table roll)1: bristrol, 2, 2 ': table roll
3, 3': 흡입롤(suction roll), 4, 4': 인장롤(tension roll)3, 3 ': suction roll, 4, 4': tension roll
5, 5': 흡입판(suction plate), 6, 6': 장망(wire)5, 5 ': suction plate, 6, 6': wire
7: 은화 압사요철부(7), 8: 이동형 슬라이스(slice)7: silver indented protrusions (7), 8: mobile slice (slice)
9: 헤드박스(head box), 10: 흡입관(suction pipe)9: head box, 10: suction pipe
11: 지료유도장치11: Paper Induction Device
이하, 첨부된 도면을 참고로 하면서 본 발명에 대해서 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 2에는 본 발명에 따른 구조가 변경된 롤(1', 2', 3', 4')의 단면도가 도시되어 있고, 도 3에는 본 발명에 따른 구조가 변경된 흡입판(5')의 평면도 및 단면도가 개략적으로 도시되어 있다. 도 2 및 도 3에서 알 수 있는 바와 같이, 본 발명에 따른 롤 및 흡입판은 지료에 생성된 은화 압사요철부(7)를 보호할 수 있도록 요부(A)가 형성되어 있다.2 shows a cross-sectional view of rolls 1 ', 2', 3 ', 4' with a modified structure according to the invention, and FIG. 3 shows a plan view of a suction plate 5 'with a modified structure according to the invention and A cross-sectional view is schematically shown. As can be seen in Figures 2 and 3, the roll and the suction plate according to the present invention is formed with a recess (A) to protect the silver indented concave-convex portion 7 generated in the paper.
또한 도 4에는 본 발명에 따른 규칙적인 은화 압사요철부(7)가 있는 장망(6')이 도시되어 있으며, 도 5는 본 발명에 따른 지료유도장치(11)로서, 이동형 슬라이스(slice)(8)에 의해 지료의 유출량을 일시정지시키거나 일정하게 유지시킬 수 있다.In addition, FIG. 4 shows a long mesh 6 'having a regular silver indented concave-convex portion 7 according to the present invention, and FIG. 5 is a paper induction device 11 according to the present invention. 8) it is possible to pause or keep the flow rate of paper stock constant.
본 발명의 제조단계를 살펴보기 위해 도 6을 참조한다.Reference is made to FIG. 6 to examine the manufacturing steps of the present invention.
도 2 및 도 3에서와 같이, 장망초지기에서 압사된 부분의 형태를 보호할 수 있도록 각각의 롤(1',2',3' 및 4')과 흡입판(5')의 구조를 생성된 은화 압사요철부와 동일한 부분에 요부를 갖도록 변경시킨다.도 4와 같이 장망에 은화형태로 압사하여 요철부를 형성시킨 후, 초지기에 조립 설치한다. 지료유도장치(11), 즉 사각틀의 밑면에 초지용 금망을 설치하고 측면 밀폐형 사각 틀을 올린 상태에서 지료의 일정량을 담아 일정 높이의 지료층을 유지시키고, 지료의 초기 와류를 안정시킨 후 탈수 레버에 의하여 아래방향으로 일시에 동시 탈수(중력 탈수)시키는 실험용 용지 제조장치인 수초지기의 탈수원리를 응용한 별도의 지료유도장치(11)를 도 5와 같이 제작한다.또한, 도 6과 같이 장망부의 종래 헤드박스(9)와 장망에 걸쳐서 설치하여, 초지시 헤드박스(9)로부터 지료가 공급되면 지료유도장치(11)를 이용하여, 장망위의 일정위치(최초 장망부에서 약 100mm 후방)까지 지료를 유도시키고 초지 상태에 따라 지료유도장치(11)에 설치된 이동형 슬라이스(8)를 상하로 움직여 지료의 토출량을 조절하면서 일정량, 즉 일정높이로 지료(지료층 높이 약 2cm)를 유도장치내에 담아서 유지시키면, 묽은 지료가 지료유도장치(11) 내에서의 일시적인 정지현상에 의하여 회전하고 있는 장망(6')상의 은화 압사요철부(7)에 먼저 안착이 이루어지고 다음에 지료유도장치(11)와 접하는 장망(6')의 하단부에 설치된 흡입관(10) 위를 통과시키면 장망(6')상에 초기 안착된 지료가 강제 탈수되면서 주변의 지료가 탈수된 요철부분에 재충전되어 은화 부분의 지료 밀도 차이를 크게 해주는 원리를 활용하여 장망 초지기 상에서 멀티톤 효과를 낼 수 있다.As shown in Figs. 2 and 3, the structures of the respective rolls 1 ', 2', 3 'and 4' and the suction plate 5 'are formed so as to protect the shape of the inclined portion in the foraging machine. The concave and convex portions are formed to have the same concave portion in the same portion as the silver rolled concave-convex portion. As shown in FIG. The paper induction device 11, ie, the paper sheet for the paper is installed on the bottom of the square frame, and the side sealed square frame is raised to contain a certain amount of the paper to maintain the paper layer of a certain height. By using the dehydration principle of the papermaking machine, which is an experimental paper manufacturing apparatus for simultaneous simultaneous dehydration (gravity dehydration) in the downward direction by using a separate paper induction apparatus 11 is manufactured as shown in FIG. It is installed over the conventional head box 9 and the long mesh of the mesh part, and when the paper is supplied from the papermaking head box 9, the paper guide device 11 is used, and a predetermined position of the long mesh (about 100 mm from the first long mesh part is rearward). To guide the paper and move up and down the movable slice 8 installed in the paper induction device 11 according to the papermaking state to adjust the paper discharge amount to a certain amount, that is, the paper (about 2cm in height). When held and held in a ceramics device, the thin paper is first settled on the silver indentation portion 7 on the long mesh 6 ', which is rotated by a temporary stop phenomenon in the paper induction apparatus 11, and then the paper induction. Passing over the suction pipe 10 installed at the lower end of the long mesh 6 'in contact with the device 11, the paper initially settled on the long mesh 6' is forcibly dehydrated, and the surrounding paper is recharged in the dehydrated irregularities. The principle of widening the difference in paper density of parts can be used to produce multitone effect on long paper machine.
전술한 바와 같이, 본 발명에 따른 방법은 종래부터 환망방식으로만 생성가능하던 멀티톤의 은화를 장망 초지기에서 제조할 수 있어 새로운 개념의 은화 구현 기초 메카니즘이 되고, 공정비를 줄일 수 있는 장점이 있다.As described above, the method according to the present invention can be produced in the long-term paper machine of the multi-tone silver, which has been conventionally produced only in the ring network method, becomes a basic mechanism of silver implementation of the new concept, and has the advantage of reducing the process cost. have.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2000-0084957A KR100407248B1 (en) | 2000-12-29 | 2000-12-29 | A method for manufacturing a security paper containing multi-tonal watermark in fourdrinier machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2000-0084957A KR100407248B1 (en) | 2000-12-29 | 2000-12-29 | A method for manufacturing a security paper containing multi-tonal watermark in fourdrinier machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20020058118A KR20020058118A (en) | 2002-07-12 |
| KR100407248B1 true KR100407248B1 (en) | 2003-11-28 |
Family
ID=27688264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2000-0084957A KR100407248B1 (en) | 2000-12-29 | 2000-12-29 | A method for manufacturing a security paper containing multi-tonal watermark in fourdrinier machine |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100407248B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100817389B1 (en) * | 2006-11-06 | 2008-03-27 | 한국조폐공사 | A chip for watermark and preparing method of security paper using the chip |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR920012655A (en) * | 1990-12-27 | 1992-07-27 | 김무룡 | Dandy Roll for Silver Formation |
| JPH04214492A (en) * | 1990-12-12 | 1992-08-05 | Mitsubishi Heavy Ind Ltd | Paper making |
| WO1993022496A1 (en) * | 1992-04-24 | 1993-11-11 | Vadeko International Incorporated | Apparatus and method of making an authenticated web formed of fibrous material |
| KR950000077A (en) * | 1993-06-16 | 1995-01-03 | 뤼디거 돌호프, 스테펜 아펠 | Method and apparatus for processing or reprocessing waste accumulated in the processing or manufacture of tobacco |
-
2000
- 2000-12-29 KR KR10-2000-0084957A patent/KR100407248B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04214492A (en) * | 1990-12-12 | 1992-08-05 | Mitsubishi Heavy Ind Ltd | Paper making |
| KR920012655A (en) * | 1990-12-27 | 1992-07-27 | 김무룡 | Dandy Roll for Silver Formation |
| WO1993022496A1 (en) * | 1992-04-24 | 1993-11-11 | Vadeko International Incorporated | Apparatus and method of making an authenticated web formed of fibrous material |
| KR950000077A (en) * | 1993-06-16 | 1995-01-03 | 뤼디거 돌호프, 스테펜 아펠 | Method and apparatus for processing or reprocessing waste accumulated in the processing or manufacture of tobacco |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20020058118A (en) | 2002-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4306934A (en) | Method and apparatus for forming paper | |
| FI69670C (en) | FOERFARANDE FOER FRAMSTAELLNING AV FIBERARK | |
| CN100371528C (en) | Forming of a paper or board web in a twin-wire former or in a twin-wire section of a former | |
| JP4382042B2 (en) | Method for making single fiber structures comprising randomly distributed cellulose fibers and non-randomly distributed synthetic fibers and single fiber structures made thereby | |
| KR100198370B1 (en) | Web patterning apparatus comprising a felt layer and a photo sensitive resin layer | |
| EP0801698B1 (en) | Multi-region paper structures and apparatus and process for making the same | |
| US20080023169A1 (en) | Forming fabric with extended surface | |
| US7491297B2 (en) | Papermachine clothing | |
| US2114072A (en) | Press roll for paper making machines and the method of making same | |
| CN1017455B (en) | Apparatus and method for making paper web | |
| KR20200010276A (en) | Structured paper fabric | |
| KR100407248B1 (en) | A method for manufacturing a security paper containing multi-tonal watermark in fourdrinier machine | |
| JP2000336596A (en) | Production of paper for preventing counterfeit | |
| US4243482A (en) | Forming paper using a curved fin to facilitate web transfer | |
| RU2306374C1 (en) | Grid of round grid-type papermaking machine for manufacture of forgery protected paper, method for manufacture of forgery protected paper, and forgery protected paper | |
| EP0688900B1 (en) | Inlet into the twin-wire zone of a hybrid former for a paper machine | |
| CN111051611B (en) | Watermark film, device and document, and method for providing watermark film, device and document | |
| EP0662171B1 (en) | Paper making | |
| EP0134240A1 (en) | Pattern matrix having uniform backer thickness | |
| KR100750646B1 (en) | Manufacturing apparatus for security paper inserted multi-tonal watermark and manufacturing method of security paper using it | |
| US8622095B2 (en) | Structured fabric for use in a papermaking machine and the fibrous web produced thereon | |
| US8480857B2 (en) | Structured fabric for use in a papermaking machine and the fibrous web produced thereon | |
| US20130206348A1 (en) | Structured fabric for use in a papermaking machine and the fibrous web produced thereon | |
| KR100995543B1 (en) | Improvements in fibrous sheets | |
| EP0583403A1 (en) | A forming apparatus. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20121002 Year of fee payment: 10 |
|
| FPAY | Annual fee payment |
Payment date: 20131001 Year of fee payment: 11 |
|
| FPAY | Annual fee payment |
Payment date: 20141006 Year of fee payment: 12 |
|
| FPAY | Annual fee payment |
Payment date: 20151109 Year of fee payment: 13 |
|
| FPAY | Annual fee payment |
Payment date: 20160927 Year of fee payment: 14 |
|
| FPAY | Annual fee payment |
Payment date: 20171011 Year of fee payment: 15 |
|
| FPAY | Annual fee payment |
Payment date: 20181008 Year of fee payment: 16 |